<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div class="box">test1</div>
    <div class="box" style="display: none;">test2
        <style>
            .box{
                width: 800px;
                height: 60px;
                line-height: 60px;
                border: 1px solid #ddd;
            }
        </style>
    </div>
</body>
</html>